test tubes are made of glass and can be used to test chemical reaction of chemicals in small amounts also we can test this reactions by just heating them otherwise we can also use them to store chemicals in small amounts for other tests.
To hold test tubes. LOL
Well when you are doing scientific experiments with test tubes you may put different substances or whatever you're using in different tubes therefore to separate them and study them individually... Does that help you at all?
Bigger, fatter test tubes are usually called boiling tubes.
They are called: - Test tubes - Cultural tubes - Sample tubes
Different laboratories may use different color codes for test tubes depending on their specific protocols. However, a common color coding for test tubes used in centrifuges is as follows: red for serum tubes, lavender for EDTA tubes, green for heparin tubes, and blue for citrate tubes.
To hold test tubes. LOL
To hold your test tubes in, or to keep them upright.
used to eat test tubes
Well when you are doing scientific experiments with test tubes you may put different substances or whatever you're using in different tubes therefore to separate them and study them individually... Does that help you at all?
A test tube rack is used to hold up test tubes. This is so they do not tip over and spill what is in them.
Glucose studies use gray top tubes. The additive in grey tubes prevent glycolysis. Lactic acid test also uses a gray top.
Test tubes are most often used in professional science and medical experiments to hold samples of substances. They are also frequently seen in school science classes and hospitals.
Test tube stands have a very simple use. They are used to hold test tubes during experiments to prevent them from falling over and spilling.
A test tube holder is a device to ...wait for it...hold test tubes ! ;-) Usually a rack or clamp that keeps them upright (& full if in use).
If the test tubes need to be sterile, you would have to autoclave them.
A group of test tubes are called samples.
85% of 140 test tubes= 85% * 140= 0.85 * 140= 119 test tubes